HYPEROPIA

The basic process of sight begins when light rays enter the eye through the cornea, the front surface of the eye. The cornea begins bending the light rays toward the back of the eye. The light then passes through the lens of the eye, which directs the rays toward an exact spot on the retina in the back of the eye. When that light reaches that perfect spot on the retina in a normal eye, the image seen is clear and in focus.

If you are hyperopic, or farsighted, you can focus well on objects at a distance but not as well on nearby objects. This condition is similar to presbyopia but the cause is different. Hyperopia occurs either because the curve of the cornea is too flat or because the eyeball is shorter than normal from front to back. The effect of this condition is that the light rays from nearby images are focused on a point behind the retina. This is what causes the near image to be blurry. To clear up the near vision, glasses or contact lenses may need to be worn to bend the light rays more sharply on the retina.